Andy Pomfret / Mbed OS UoY-32C-lab4-3

Template project for University of York ELE00032C Lab 4

Dependencies:   UoY-serial

main.cpp@2:00b981e6c241, 2021-12-17 (annotated)

Committer:
ajp109
Date:
Fri Dec 17 15:18:35 2021 +0000
Revision:
2:00b981e6c241
Parent:
1:09ea183d3f39 
Pull updates for 2022

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ajp109 0:77209603a6fe 1 #include "mbed.h"
ajp109 0:77209603a6fe 2
ajp109 1:09ea183d3f39 3 class BoundedInt {
ajp109 1:09ea183d3f39 4
ajp109 1:09ea183d3f39 5 int min_;
ajp109 1:09ea183d3f39 6 int max_;
ajp109 1:09ea183d3f39 7 int value_;
ajp109 1:09ea183d3f39 8
ajp109 1:09ea183d3f39 9 public:
ajp109 1:09ea183d3f39 10
ajp109 1:09ea183d3f39 11 /* Constructor: takes a minimum and maximum value, and an initial value.
ajp109 1:09ea183d3f39 12 Enforces min <= max and calls setValue() to enforce min <= value <= max. */
ajp109 1:09ea183d3f39 13 BoundedInt(int min, int max, int value) {
ajp109 1:09ea183d3f39 14 if (max < min) {
ajp109 1:09ea183d3f39 15 max = min;
ajp109 1:09ea183d3f39 16 }
ajp109 1:09ea183d3f39 17 min_ = min;
ajp109 1:09ea183d3f39 18 max_ = max;
ajp109 1:09ea183d3f39 19 setValue(value);
ajp109 1:09ea183d3f39 20 }
ajp109 1:09ea183d3f39 21
ajp109 1:09ea183d3f39 22 /* Sets a new value for this BoundedInt. If the supplied value is outside
ajp109 1:09ea183d3f39 23 the range [min, max] it will be set to the closest valid value instead. */
ajp109 1:09ea183d3f39 24 void setValue(int value) {
ajp109 1:09ea183d3f39 25 if (value < min_) {
ajp109 1:09ea183d3f39 26 value = min_;
ajp109 1:09ea183d3f39 27 }
ajp109 1:09ea183d3f39 28 if (value > max_) {
ajp109 1:09ea183d3f39 29 value = max_;
ajp109 1:09ea183d3f39 30 }
ajp109 1:09ea183d3f39 31 value_ = value;
ajp109 1:09ea183d3f39 32 }
ajp109 1:09ea183d3f39 33
ajp109 1:09ea183d3f39 34 /* Returns the value of this BoundedInt as an int */
ajp109 1:09ea183d3f39 35 int getValue() {
ajp109 1:09ea183d3f39 36 return value_;
ajp109 1:09ea183d3f39 37 }
ajp109 1:09ea183d3f39 38
ajp109 1:09ea183d3f39 39 /* Shorthand for .setValue() */
ajp109 1:09ea183d3f39 40 BoundedInt & operator=(int value) {
ajp109 1:09ea183d3f39 41 setValue(value);
ajp109 1:09ea183d3f39 42 return *this;
ajp109 1:09ea183d3f39 43 }
ajp109 1:09ea183d3f39 44
ajp109 1:09ea183d3f39 45 };
ajp109 1:09ea183d3f39 46
ajp109 1:09ea183d3f39 47 int main() {
ajp109 1:09ea183d3f39 48 printf("ok\r\n");
ajp109 1:09ea183d3f39 49
ajp109 1:09ea183d3f39 50 BoundedInt test(0, 10, 0); // Minimum, maximum, initial value
ajp109 1:09ea183d3f39 51
ajp109 1:09ea183d3f39 52 printf("Value is %d\r\n", test.getValue());
ajp109 1:09ea183d3f39 53 test = 4;
ajp109 1:09ea183d3f39 54 printf("Value is %d\r\n", test.getValue());
ajp109 1:09ea183d3f39 55 test = 25;
ajp109 1:09ea183d3f39 56 printf("Value is %d\r\n", test.getValue());
ajp109 1:09ea183d3f39 57
ajp109 1:09ea183d3f39 58 // Do nothing, forever...
ajp109 1:09ea183d3f39 59 while (true);
ajp109 0:77209603a6fe 60 }